Icom DS-100 Service Manual page 22

Class d/dsc terminal
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SECTION 9
BLOCK DIAGRAM
FI3
Q18, Q19
2SC4116
Q3
IC4
IC3
IC1
FI1, FI2
2SC2714
NJM2211M
M5218AFP
TA31136FN
FL-310
DSC
DECODER
FM IF IC
SQL
X2 CR-659
(21.25MHz)
IC2
Q7
µPD3140GS
2SC4215
Q5 2SK210
Q6
D4, D5 MA363B
2SC4215
VCO
PLL DATA BUS
MAIN unit
LOGIC unit
IC2
HN58X2432TI
EEPROM
X1 CR-610
X2 DMX-26S
IC4
S-80928ANMP
RESET
CPU
IC3
RTC-4553A
CLOCK
KEY
IC6, IC7 HD61202UFS
DS1
IC8 HD61203UFS
TSD0402
Q2, Q6 2SC4116
Q3 2SB1132
DIM
LED
CTRL
CH70
ANT
3stage
Q1
1stage
Q2
3SK292
3SK166
IC10
TA7805F
5V
8V
Q15 2SB1132
IC9
Q8
Q16 DTC144TU
2SC4215
TA7808S
R8V
RCEV
Q17
2SC4116
DSC+
DSC–
IC1
MB90F583BPFV-G
IC6
IC5
DSC
TC7W14FU
TLP121
(Port)
PHOTO
COUPLER
NMEAI
Q13 2SC4116
NMEAO
Q14 DTC144TU
CLTX
D11 DA204U
CLRX
Q9 DTC144TU
D8 DA204U
DATAS
DATAM
IC6
IC8
TC7W14FU
TLP121
PHOTO
COUPLER
Q11 2SC4116
Q12 DTC144TU
D10 DA204U
DISTRESS SW
SP1
BEEP
Vcc
NMEAI+
NMEAI–
NMEAO+
NMEAO–
ICF3
DATAS+
DATAS–
DATAM+
DATAM–
9 - 1

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